82 ME. C. B. CLAEKE ON INDIAN SPECIES OE CYPEEUS. 



bus) 5-7-nerviis ; nuce ellipsoidea aut oblonga, utrinque angustata, 

 cellulis extimis parum laxis. — Nees in Wight Gontrih. p. 72 ; 

 Kunth, FJnum. ii. p. 18 ; Cav. Ic. vi. p. 65, t. 588. fig. 2 ; Benth. FL 

 Austral, vii. p. 262, nota excl. ; Cosson, JEccpl. Alger., Glum. p. 252 ; 

 Boiss. FL Orient, v. p. 368 ; BoecTc. in Linncea, xxxv. p. 493, var. 

 /3 excl. 



C. Mulenpulla, Roem. et Sch. Syst. Mant. ii. p. 99. 



C. pugioniformis, Dietr. Sp. PI. ii. p. 230. 



C. Michelianus, Link, Hort. Berol. i. p. 303. 



C. hyalinolepis, Steud. Cyp. p. 316. 



C. monocephalus, Roxb. h. propr., et Ic. ined. in h. Kew, non FL Ind. 



C. squarrosus, Roxb. FL Ind. i. p. 194, Ic. ined. ii. t. 54. fig. 95, h. Cal- 

 cutta, non Linn. 



Pycreus diffusus, Nees in Linncea, ix. p. 283. 



Dichostylis pygmaea, Nees in Linncea, ix. p. 289. 



Cyperus, Wall. ! List n. 3325 B, C. 



Cyperus sp., n. 58, Herb. Ind. Or., Hook.f. et T. Thorns. 



Isolepis, Wall. ! last, n. 3484 C partim. 



Glabra, annua. Culmi csespitosi (usque ad 120) , longi 3-25 cm., 

 rigidiusculi, sursum trigoni, leves. Eolia 2-4, graminea, Jcum 

 culmo ssepe sequilonga, plana, sursum minute scabra. Bractese 

 3-5, divaricatse, usque ad 8-16 cm. longse, foliis similes. Capi- 

 tulum 1-2 cm. in diam., densissime congestum, ssepe 100-spicu- 

 losum ; radii plures, obsoleti, nunquam evoluti. Spiculae longse 

 6-10 mm., latse 1-2 mm., compressse, albo-virides, proventu cin- 

 namomeo-fuscse, 8-24-flor8e ; rhachilla tenuissima, tenuissime 

 bialata, undata. Grlumse spissse, persistentes, tenues, fructus 

 tempore plane biseriatse, raro quodammodo irregulares, carinato- 

 naviculares, basin versus ssepe scariosse nervis evanidis, a mar- 

 ginibus hyalinis basi subdecurrentes. Stamina 2-1 ; filamenta 

 anguste ligulata, fere levia ; antherse lineari-oblongse, muticse, 

 flavse. Stylus ssepe cum nuce subsequilongus ; rami 2, e gluma 

 breviter exserti. Nux cum | parte glumse sequilonga, in facie 

 interiore (contra rhacheolam adpressa) subplana, in facie exteriore 

 convexa curvata, interdum obscure angulata, brunnea; cellulse 

 extimse quadratee, emarcidse, hyalinse, persistentes, non laxse ; 

 ideoque nux non (ut in Isolepide Micheliana) a margine lucide 

 hyalino sub lente circumdata. 



Ab Algeria usque ad Amurland, China, Australia. 



Africa borealis : Algiers {Kralik n. 90, h. Kew) ; Nubia 

 {Kotschy n. 329, hh, Kew, Mus. Brit.); Egypt (Sieber, 

 h. Kew ; Schweinfurth n. 2010, h. Mus. Brit.). 



